flat roof warm deck construction

Typical details for a “warm” flat roof (U.K.); drawing via BuildingRegs4Plans. To put together a warm deck roof, it’s important that the insulation be positioned above the structural deck — the layers that make up the ceiling. Zero ventilation space is required, and the construction appears stacked and compact.

A vapour barrier or vapour control layer is an essential component of any warm roof. Ashford Building Services can quickly and economically convert any cold deck flat roof to a warm-deck insulated flat roof, particularly where problems have been tackled sooner rather than later.

control layer is required on the warm side of the insulation to combat condensation. The warm deck roof as shown below has the insulation located above the deck. With a warm deck roof there is less chance of thermal movement and condensation, it should therefore be considered as the standard form of construction for flat roofs. The traditional ...

warm as the living rooms in the house. This form of construction has been adopted from flat roofing, where a structural deck is covered by a sealed, vapour-proof membrane. Rigid insulation is laid over this, the gaps between it are carefully sealed and then a waterproof roof covering is laid on top. However, in practice it is very difficult to ...

Flat Roof Insulation And The Law. The right type of insulation will keep you warm in the Winter and Cool in the Summer while at the same time reducing fuel bills. Since the mid-2000s and the inception of the conservation of fuel and power building regulations, the legal requirements around flat roofs have changed.

The off-the-rack alternative to custom flashing is a galvanized drip edge specially made for flat roofs. Called a gravel stop, it works on any kind of flat roof and comes in many colors. Once the flashing is in place, the roof is ready to face the elements.

The warm deck roof design is the modern method for flat roof construction and is preferred wherever this option is possible. So called because the insulating layer is located above the roof rafters and between the structural supports, a warm deck roof results in a temperature for the roof and loft area that is consistent with the rest of the ...

In warm deck roofs, however, the insulation is positioned above the structural deck, and no ventilation is necessary as a result. The roof deck is kept at a temperature similar to the inside of the building throughout the year and this protects the roof structure from the hot and cold extremes, cutting down the thermal movement.

Nowadays, flat roofs have the ‘warm roof’ type. Insulation can either be put below the weather proof membrane, which is called a ‘warm roof deck construction’, or above the waterproof membrane, which is called an ‘inverted warm deck’.

The sandwich warm deck roof is the most common type of flat roof. The insulation is placed below the waterproof covering and is either mechanically fixed or bitumen bonded on to the top of the deck. Inverted warm deck roof

Flat Roof - Components. Components of a Flat Roof. A flat roof is a multi-layer construction typically comprising of the following elements: Waterproof membrane with a protective covering - this should prevent water reaching the roof structure and the room below.